linux/Documentation/gpio.txt
Bernhard Walle ebde7b062c Documentation/gpio.txt: explain poll/select usage
Add a bit more information how to use poll(2) on GPIO value files
correctly. For me it was not clear that I need to poll(2) for
POLLPRI|POLLERR or select(2) for exceptfds.

Signed-off-by: Bernhard Walle <walle@corscience.de>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18 15:00:46 -08:00

700 lines
30 KiB